High-strength anti-loosening nut structure

Abstract

The utility model relates to the technical field of fasteners, and discloses a high-strength anti-loosening nut structure which comprises a nut body, a plurality of round holes are formed in the periphery of the top of the nut body, positioning blocks are fixedly connected to the inner walls of the round holes, a connecting ring is arranged at the bottom of the nut body, and the positioning blocks are fixedly connected to the connecting ring. The left side and the right side of the bottom of the outer wall of the connecting ring are each fixedly connected with two clamping jaws, the adjacent sides of the two clamping jaws are each provided with a first mounting groove, the adjacent sides of the two first mounting grooves are each fixedly connected with a sliding block, and fixing mechanisms are arranged on the outer walls of the multiple positioning blocks. According to the nut, the positioning blocks are arranged in the round holes in the periphery of the top of the nut body, during installation, positioning is assisted, it is ensured that the nut is accurately screwed into a bolt, the friction force between the nut and the bolt is increased, looseness is prevented, the connection stability is greatly improved, the clamping jaws of the bottom connecting ring make contact with a connected piece after being screwed, and the connection reliability is further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field especially relates to high strength anti-loose nut structure. BACKGROUND

[0002] In the mechanical manufacturing industry, the nut is a very important basic part, through the cooperation of bolt and nut, can ensure that the high temperature and high pressure environment inside the cylinder, the parts will not loosen, ensure the normal operation of the machine.

[0003] High strength anti-loose nut structure is hexagonal, this is in order to facilitate the use of wrench tool to tighten operation, the design of hexagonal provides good torque transmission, the nut can be uniformly tightened, the vibration generated in the working process will make the screw loose, under the long time effect, the connected screw will appear loose, the existing solution tightens the main nut first, then tightens the secondary nut, the secondary nut generates axial pressure to the main nut, increases the friction between the threads, prevents loosening, but under the long-term alternating stress, fatigue phenomenon appears, after long time cyclic loading, the thread part will appear tiny crack, with the crack propagation, will lead to the connection strength between the nut and bolt to decline, finally causes loosening. SUMMARY

[0004] In order to make up for the above insufficient, the utility model provides high strength anti-loose nut structure, aims at improving the prior art after long time cyclic loading, the thread part will appear tiny crack, with the crack propagation, will lead to the connection strength between the nut and bolt to decline, finally causes loosening problem.

[0005] In order to realize the above purpose, the utility model adopts the following technical scheme: high strength anti-loose nut structure, including nut body, the top of the nut body is provided with a plurality of round holes around, the inner wall of a plurality of round holes is all fixedly connected with positioning block, the bottom of the nut body is provided with connecting ring, the outer wall bottom left and right sides of the connecting ring are all fixedly connected with two clamping jaws, the adjacent side of two clamping jaws is all provided with installation groove one, the adjacent side of two installation groove one is all fixedly connected with sliding block, the outer wall of a plurality of positioning blocks is provided with fixed mechanism, the fixed mechanism is used for fixing screw.

[0006] As a further description of the above technical scheme:

[0007] The fixed mechanism includes gasket, the bottom of the gasket is fixedly connected on the outer wall of a plurality of positioning blocks, the top of the gasket is provided with a plurality of mounting holes around, the inner wall bottom of a plurality of mounting holes is all fixedly connected with connecting piece, the top of a plurality of connecting pieces is all fixedly connected with spring, the other end of a plurality of springs is fixedly connected with fixed block.

[0008] As a further description of the above technical solutions:

[0009] The outer wall of the nut body is provided with a plurality of installation grooves two, and the inner wall of the plurality of installation grooves two is fixedly connected with a fixed sheet.

[0010] As a further description of the above technical solutions:

[0011] The outer wall of the connecting ring is fixedly connected with an installation ring at the top, and the top of the installation ring is fixedly connected with the bottom of the nut body.

[0012] As a further description of the above technical solutions:

[0013] The top of the installation ring is provided with a sealing groove, and the inner wall of the sealing groove is fixedly connected with a sealing ring.

[0014] As a further description of the above technical solutions:

[0015] The top of the gasket is provided with an installation groove three, and the inner wall of the installation groove three is fixedly connected with a loosening gasket.

[0016] As a further description of the above technical solutions:

[0017] A plurality of round holes are equidistantly arranged at the top of the nut body, and the bottom ends of the plurality of positioning blocks are equidistantly fixedly connected to the inner wall bottom of the round hole.

[0018] As a further description of the above technical solutions:

[0019] The top of the clamping jaw is equidistantly fixedly connected to the bottom of the connecting ring on the left and right sides, and the inner wall of the installation groove one is equidistantly fixedly connected to the far side of the two sliding blocks.

[0020] The utility model has the advantages of the following beneficial effects:

[0021] 1、The utility model discloses a nut body top four -around round hole is provided with the positioning block, and the auxiliary positioning is assisted when installing, ensures that the nut is accurately rotated into the bolt, increases the friction with the bolt, prevents loosening, greatly improves the connection stability, and the clamping jaw of the bottom connecting ring is contacted with the connected piece after being tightened, tightly holds the connected piece, further enhances the reliability of connection, and the sliding block in the installation groove one of the clamping jaw adapts to the connected piece of different size and shape, improves the versatility and adaptability of the nut.

[0022] 2. The utility model discloses a fixing mechanism is connected with the nut body through the gasket, ensures the stability of fixed mechanism, can even scattered pressure simultaneously, protects the nut and the connecting piece, and the connecting piece in the mounting hole provides firm connection for spring, and spring plays the buffering effect when the nut is vibrated or impacted by external force, absorbs and disperses external force, and makes the fixed block keep pressure with the connecting piece surface all the time, increases the friction and prevents the nut from loosening. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The front view of the high-strength anti-loose nut structure provided by the utility model;

[0024] Figure 2 The perspective view of the high-strength anti-loose nut structure provided by the utility model;

[0025] Figure 3 The plan view of the high-strength anti-loose nut structure provided by the utility model;

[0026] Figure 4 The fixed mechanism split view of the high-strength anti-loose nut structure provided by the utility model;

[0027] Figure 5 The local structure display view of the high-strength anti-loose nut structure provided by the utility model.

[0028] Legend:

[0029] 1, nut body, 2, fixed mechanism, 201, gasket, 202, mounting hole, 203, connecting piece, 204, spring, 205, fixed block, 3, round hole, 4, positioning block, 5, connecting ring, 6, claw, 7, mounting groove one, 8, sliding block, 9, mounting groove two, 10, fixed piece, 11, mounting ring, 12, sealing groove, 13, sealing ring, 14, mounting groove three, 15, loosen washer. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0031] Reference Figure 1 , Figure 3 and Figure 4The utility model provides a kind of embodiment: high-strength anti-loose nut structure, including nut body 1, the top of nut body 1 Four around is equipped with multiple round holes 3, the inner wall of multiple round holes 3 It is fixedly connected with locating block 4, the bottom of nut body 1 It is provided with connecting ring 5, the outer wall bottom left and right sides of connecting ring 5 It is fixedly connected with two clamping jaw 6, the adjacent side of two clamping jaw 6 It is equipped with installation groove one 7, the adjacent side of two installation grooves one 7 It is fixedly connected with sliding block 8, the outer wall of multiple locating blocks 4 It is provided with fixed mechanism 2, and fixed mechanism 2 is used to fix screw;

[0032] Specifically, when the nut body 1 is tightened on the bolt, the two clamping jaws 6 on the left and right sides of the bottom of the connecting ring 5 will be embedded into the surface of the connected member, and the friction between the nut body 1 and the connected member is greatly increased through the arrangement of the two clamping jaws 6, thereby preventing the nut body 1 from loosening. At the same time, the locating blocks 4 in the round holes 3 around the top of the nut body 1 will cooperate with the threads on the bolt, further increasing the fastening force of the nut body 1, making the nut body 1 more stable on the bolt. In addition, the sliding block 8 in the installation groove one 7 slides in the installation groove one 7. This design can adapt to connected members of different sizes, improving the versatility of the nut body 1.

[0033] Referring to Figure 2 , Figure 3 and Figure 4 , the fixed mechanism 2 includes a gasket 201, the bottom of the gasket 201 is fixedly connected to the outer wall of the multiple locating blocks 4, multiple mounting holes 202 are formed around the top of the gasket 201, a connecting piece 203 is fixedly connected to the inner wall bottom of each mounting hole 202, a spring 204 is fixedly connected to the top of each connecting piece 203, and a fixed block 205 is fixedly connected to the other end of each spring 204.

[0034] Specifically, the bottom of the gasket 201 is fixedly connected to the outer wall of the multiple locating blocks 4 by welding, ensuring that the connection between the gasket 201 and the locating blocks 4 is firm and reliable. Multiple mounting holes 202 are evenly formed around the top of the gasket 201. The mounting holes 202 are used to facilitate the installation of the fixed mechanism 2 on other equipment or structures. A connecting piece 203 is fixedly connected to the inner wall bottom of each mounting hole 202. The connecting piece 203 is used to increase the strength and stability of the mounting hole 202. A spring 204 is fixedly connected to the top of each connecting piece 203. The spring 204 is used to provide certain elasticity and buffering to reduce the impact and vibration of the fixed mechanism 2 during use. A fixed block 205 is fixedly connected to the other end of each spring 204. The fixed block 205 is used to fix the fixed mechanism 2 on other equipment or structures to prevent it from loosening or moving.

[0035] Referring toFigure 3 、 Figure 4 and Figure 5 The outer wall of the nut body 1 is provided with a plurality of mounting grooves 9, and the inner wall of the mounting grooves 9 is fixedly connected with a fixed sheet 10; the outer wall of the connecting ring 5 is fixedly connected with a mounting ring 11 at the top, and the top of the mounting ring 11 is fixedly connected with the bottom of the nut body 1; the top of the mounting ring 11 is provided with a sealing groove 12, and the inner wall of the sealing groove 12 is fixedly connected with a sealing ring 13;

[0036] Specifically, the fixed sheet 10 fixedly connected with the inner wall of the mounting groove 9 can cooperate with external tools or structures in some specific cases, enhancing the functionality and stability of the nut body 1 as a whole. The top of the mounting ring 11 is fixedly connected with the bottom of the nut body 1, ensuring the integrity of the entire nut body 1 structure. When the nut body 1 is installed on the bolt, the mounting ring 11 can effectively transmit the fastening force from the nut body 1 to the connecting ring 5, so that the claws 6 at the bottom of the connecting ring 5 can be tightly embedded into the surface of the connected part. The sealing groove 12 at the top of the mounting ring 11 and the sealing ring 13 fixedly connected with the inner wall of the sealing groove 12 play a sealing role during the use of the nut body 1.

[0037] Referring to Figure 1 、 Figure 2 and Figure 3 The top of the gasket 201 is provided with a mounting groove 14, and the inner wall of the mounting groove 14 is fixedly connected with a loosening washer 15; a plurality of circular holes 3 are equally provided at the top of the nut body 1, and the bottom ends of a plurality of positioning blocks 4 are equally fixedly connected with the inner wall bottom of the circular hole 3; the top of the two claws 6 is equally fixedly connected with the bottom left and right sides of the connecting ring 5, and the far side of the two sliders 8 is equally fixedly connected with the inner wall of the mounting groove 1;

[0038] Specifically, the bottom end of the positioning block 4 is equally fixed in the inner wall bottom of the circular hole 3. During the installation of the nut body 1, the positioning block 4 plays a role in auxiliary positioning and enhancing stability. When the nut body 1 is screwed on the bolt, the positioning block 4 cooperates with the surface or threaded part of the bolt, further preventing the loosening and rotation of the nut body 1. After the nut body 1 is tightened, the claws 6 will be embedded into the surface of the connected part, increasing the friction between the nut body 1 and the connected part, thereby effectively preventing the loosening of the nut body 1. The two sliders 8 fixedly connected with the inner wall of the mounting groove 1 can be adjusted according to the size and shape of the connected part during installation, so that the nut body 1 can better adapt to different environments, improving the versatility and stability of the nut body 1.

[0039] Working principle: through the nut body 1 and bolt cooperation is tightened, in the process of tightening, the positioning block 4 in the round hole 3 of the top of the nut body 1 plays the role of auxiliary positioning, ensures that the nut body 1 can be accurately aligned with the bolt and screwed in during installation, at the same time, the positioning block 4 can also increase the friction between the bolt to a certain extent, prevent the nut from loosening easily, the clamping jaw 6 on the left and right sides of the bottom of the connecting ring 5 will contact with the surface of the connected part after the nut body 1 is tightened. When subjected to external vibration or other forces that may cause loosening, the clamping jaw 6 will tightly grasp the connected part, increase the connection stability between the nut and the connected part. The slider 8 in the installation groove 7 can adapt to the surface shape and size of different connected parts to a certain extent, so that the clamping jaw 6 can better fit the connected part, further improve the anti-loosening effect;

[0040] And, when the nut is subjected to external vibration or loosening, the spring 204 in the mounting hole 202 around the top of the gasket 201 starts to play a role, one end of the spring 204 is connected to the connecting plate 203, the other end is connected to the fixed block 205, in the normal state, the spring 204 is in a certain compression state, so that the fixed block 205 produces a certain pressure on the bolt or the surface of the connected part, when there is a loosening trend, the spring 204 will further compress or stretch to adapt to the change of external force, and continuously exert pressure through the fixed block 205, increase the friction, thereby preventing the loosening of the nut.

[0041] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A high-strength anti-loosening nut structure comprising a nut body (1), characterized in that: The top of the nut body (1) is provided with a plurality of round holes (3), the inner wall of the plurality of round holes (3) is fixedly connected with a positioning block (4), the bottom of the nut body (1) is provided with a connecting ring (5), the outer wall bottom of the connecting ring (5) is fixedly connected with two clamping jaws (6) on the left and right sides, the adjacent side of the two clamping jaws (6) is provided with a mounting groove one (7), the adjacent side of the two mounting grooves one (7) is fixedly connected with a sliding block (8), the outer wall of the plurality of positioning blocks (4) is provided with a fixing mechanism (2), and the fixing mechanism (2) is used for fixing screws.

2. The high-strength lock nut structure according to claim 1, characterized by: The fixing mechanism (2) comprises a gasket (201), the bottom of the gasket (201) is fixedly connected to the outer wall of the plurality of positioning blocks (4), the top of the gasket (201) is provided with a plurality of mounting holes (202), the inner wall bottom of the plurality of mounting holes (202) is fixedly connected with a connecting piece (203), the top of the plurality of connecting pieces (203) is fixedly connected with a spring (204), and the other end of the plurality of springs (204) is fixedly connected with a fixed block (205).

3. The high-strength lock nut structure according to claim 1, characterized by: The outer wall of the nut body (1) is provided with a plurality of mounting grooves two (9), and the inner wall of the plurality of mounting grooves two (9) is fixedly connected with a fixed piece (10).

4. The high-strength lock nut structure according to claim 1, characterized by: The outer wall top of the connecting ring (5) is fixedly connected with a mounting ring (11), and the top of the mounting ring (11) is fixedly connected with the bottom of the nut body (1).

5. The high-strength lock nut structure according to claim 4, characterized by: The top of the mounting ring (11) is provided with a sealing groove (12), and the inner wall of the sealing groove (12) is fixedly connected with a sealing ring (13).

6. The high-strength lock nut structure according to claim 2, characterized by: The top of the gasket (201) is provided with a mounting groove three (14), and the inner wall of the mounting groove three (14) is fixedly connected with a loosening washer (15).

7. The high-strength lock nut structure according to claim 1, characterized by: The plurality of round holes (3) are equidistantly provided on the top of the nut body (1), and the bottom ends of the plurality of positioning blocks (4) are equidistantly fixedly connected to the inner wall bottom of the round hole (3).

8. The high-strength lock nut structure according to claim 1, characterized by: The top of the two clamping jaws (6) is fixedly connected to the bottom of the connecting ring (5) on the left and right sides, and the far side of the two sliding blocks (8) is fixedly connected to the inner wall of the mounting groove one (7).

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